| 面对称静电场中曲轴宽电子束聚焦的象差理论 |
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| 引用本文： | 金伟其,周立伟,倪国强.面对称静电场中曲轴宽电子束聚焦的象差理论[J].北京理工大学学报,1990(Z3). |
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| 作者姓名： | 金伟其 周立伟 倪国强 |
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| 作者单位： | 北京理工大学工程光学系
(金伟其，周立伟)，北京理工大学工程光学系(倪国强) |
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| 摘 要： | 在宽电子束聚焦普遍理论的基础上,研究了面对称静电场中曲轴宽电子束聚焦的象差理论,讨论了曲轴横向象差的定义,给出了象差方程和象差系数,并将曲轴宽电子束聚焦的象差理论应用于轴对称静电阴极透镜。所得结果适宜于计算机处理。
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| 关 键 词： | 电子光学 电子透镜 电子聚焦/阴极透镜 象差理论 |
Aberration Theory for the Focusing of a Wide Electron Beam Having Curvilinear Optical Axis in an Electrostatic Field With a Plane of Symmetry |
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| Jin Weiqi Zhou Liwei Ni Guoqiang.Aberration Theory for the Focusing of a Wide Electron Beam Having Curvilinear Optical Axis in an Electrostatic Field With a Plane of Symmetry[J].Journal of Beijing Institute of Technology(Natural Science Edition),1990(Z3). |
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| Authors: | Jin Weiqi Zhou Liwei Ni Guoqiang |
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| Institution: | Department of Optical Engineering |
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| Abstract: | An aberration theory for the focusing of a wide electron beam having curvilinear optical axis in an electrostatic field with a plane of symmetry is studied, based on the generalized theory of wide electron beam focusing given by the anthors. The definition of the transverse aberration of the wide electron beam having curvilinear optical axis is discussed , and the aberration equations and aberration coefficients given . The aberration theory has been applied to cathode lenses with axes of symmetry . The results of this paper have been shown to be convenient for computer processing . |
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| Keywords: | electron optics electron lenses electron focusing /cathode lenses aberration theory |
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